9890849 has 4 divisors (see below), whose sum is σ = 10411440. Its totient is φ = 9370260.

The previous prime is 9890833. The next prime is 9890863. The reversal of 9890849 is 9480989.

9890849 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 9890849 - 2⁴ = 9890833 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9890869) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 260267 + ... + 260304.

It is an arithmetic number, because the mean of its divisors is an integer number (2602860).

Almost surely, 2^9890849 is an apocalyptic number.

It is an amenable number.

9890849 is a deficient number, since it is larger than the sum of its proper divisors (520591).

9890849 is a wasteful number, since it uses less digits than its factorization.

9890849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 520590.

The product of its (nonzero) digits is 186624, while the sum is 47.

The square root of 9890849 is about 3144.9720189534. The cubic root of 9890849 is about 214.6567372673.

The spelling of 9890849 in words is "nine million, eight hundred ninety thousand, eight hundred forty-nine".